Invalid transfer aid



FIG. 1 is a top, front and left side perspective view of an invalid transfer aid, showing our new design;

FIG. 2 is a side elevational view from the left of FIG. 1, the side opposite that shown in FIG. 2 being the mirror image thereof;

FIG. 3 is a top, rear and left side perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an invalid transfer aid, as shown and described. 